Harald Wartooth or Harold Hiltertooth (Old Norse: Haraldr hilditǫnn; Modern Swedish and Danish: Harald Hildetand; Modern Norwegian: Harald Hildetann) was a semi-legendary king of Denmark who is mentioned in several traditional sources. He is held to have (indirectly) succeeded his father as king of Zealand and to have expanded his realm. According to different sources, he may have ruled over Jutland, part of Sweden and the historical northern German province of Wendland. He is said to have been finally defeated and killed at the legendary Battle of Bråvalla.
Name
Saxo Grammaticus, in Gesta Danorum, gives two different accounts about why Harald had the name wartooth. According to one tradition, it was due to Harald having lost two of his teeth in battle against Veseti, the lord of Scania, after which two new teeth grew out. Saxo further tells that according to another opinion, the name was derived from Harald having protruding teeth. A scholarly view, however, holds the name to be derived from a name for "war hero".